Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc7df93683273f6…

MALICIOUS

PDF

46.1 KB Created: 2020-08-07 06:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3a597aa0d386dba3b7a008023d0f3a0 SHA-1: f72b79b97bcc39c838c418ec15ba19a7ca7d0593 SHA-256: 7bc7df93683273f604cbd574b230ee2c42673864c50e01a3d527fdb12ce752c2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise a phishing or scam lure as a document. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=paraphrasing+sentences+examples+pdf In PDF document text
    • http://files.nancythomas.org/uploads/1/3/1/3/131379223/tivowilibomoti.pdfIn PDF document text
    • http://files.surrenderedtochrist.org/uploads/1/3/2/6/132681656/wulegi.pdfIn PDF document text
    • http://files.mrmacbible.org/uploads/1/3/1/6/131606262/1033041.pdfIn PDF document text
    • http://files.michaelallensalsbury.com/uploads/1/3/0/9/130969966/6271375.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/soler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4481/4500/files/selatokunif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/gegukujezifuviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/mimuvexewigugimume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/wimitirujarewalufogaduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/zawul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/8596567396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9380/3679/files/adobe_illustrator_cs6_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5999/4014/files/aegon_life_term_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/marginal_costing_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1705/2066/files/buroliduxinizobizifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/87816353525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/sierra_bullets_reloading_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/41111976323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/zexivabajejerawev.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7695 5640 bytes
SHA-256: 52279853063af2d81ab8c7c405e9e721715efb58ccd28ea9cdc60cef5df09c70
font_01_sfnt_off000089a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A5 9816 bytes
SHA-256: 03d674e29cdf3c277159310ae1b828007c96fa6a3e4cc21a83c1346e62b6859f

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